(19)

(11)

EP 2 912 823 A1

(12)

(43) Date of publication: 02.09.2015 Bulletin 2015/36 (21) Application number: 13815183.2 (22) Date of filing: 29.10.2013

(51) International Patent Classification (IPC):  H04L 29/06(2006.01) (86) International application number: PCT/US2013/067259 (87) International publication number: WO 2014/070734 (08.05.2014 Gazette 2014/19)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 29.10.2012 US 201261719774 P (71) Applicant: Google Inc. Mountain View, CA 94043 (US)	(72) Inventors: NERIERI, Francesco Santa Cruz, CA 95062 (US) MANOLACHE, Doru C. Palo Alto, CA 94306 (US) (74) Representative: Boult Wade Tennant  Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)